If you run a cattle operation in England, there is a significant regulatory change coming that you need to be aware of, and the clock is already ticking.
From 2027, all cattle born in England must be identified with an electronic identification (EID) ear tag. This is not a pilot scheme or a voluntary initiative. It is a legal requirement, and it will affect every beef and dairy farmer in England regardless of herd size.
What is changing and why?
Since the BSE episode in the 1990s, the UK has relied on a cumbersome and costly paper-based passport system for livestock traceability. That system is now being modernised.
Defra's changes to cattle identification will start from Summer 2026, introducing a new cattle movement reporting system alongside the mandatory EID requirement. The new Livestock Information Service (LIS) will replace the existing Cattle Tracing System, simplifying how movements are reported by farmers, markets, abattoirs, and regulators.
From 2027, one of the two compulsory ear tags applied to every newborn calf must be an EID tag using low-frequency (LF) technology.
What does an EID tag actually do?
EID tags contain a microchip that stores a unique 15-digit animal identification number. Unlike a conventional visual tag that you read by eye, an EID tag can be scanned electronically from a distance of up to a metre, in the dark, through mud, in under a second.
The practical benefits are significant. Scanning replaces manual reading and recording of tag numbers, reducing errors and saving time at markets, abattoirs, and during routine herd checks. The electronic tags will help officials trace cattle movements faster and more accurately during disease outbreaks.
What about existing cattle?
The mandatory requirement applies to newborn calves from 2027 onwards. Cattle already in your herd and tagged under the existing system are not required to be retroactively retagged at this stage. However, any calf born after the deadline must carry an approved EID tag from the outset.
Low frequency, not ultra high frequency
It is worth being aware that the mandatory technology specified for England is low-frequency (LF). The industry remains divided over this decision, with several organisations calling for ultra-high frequency (UHF) tags instead, as used in Scotland. Scotland has taken a different path, mandating UHF technology, meaning there will be different tag types required north and south of the border.
For most farmers in England, low-frequency EID tags will be the compliant choice for statutory tagging purposes from 2027.
Why act now rather than waiting?
The 2027 deadline may feel some distance away, but there are good reasons to start thinking about it now.
Firstly, approved EID tags need to be sourced from authorised suppliers. As the deadline approaches, demand will increase significantly and supply chains will come under pressure. Farmers who leave it late risk paying more or waiting longer.
Secondly, if you use a tag reader or scanning equipment, you will need to ensure it is compatible with low-frequency EID tags. Budgeting for new equipment takes time, and funding schemes including the Farming Equipment and Technology Fund (FETF) may be available to help with costs, but application windows open and close.
Thirdly, your team will need to be familiar with the new scanning and reporting processes before they become mandatory. Building that familiarity in advance, rather than under pressure, makes sense.
How Earlsmere can help
Earlsmere is a DEFRA approved cattle tag supplier. We stock approved EID tags suitable for the 2027 mandate and can advise on the right tags for your herd and operation.
If you want to get ahead of the changes, avoid last-minute supply issues, and make sure your farm is ready well before the 2027 deadline, get in touch with our team today.

